Air Bypass Valve Solenoid: Description and Operation

GF07.05-P-3105MOR Component Description For Air Divert Switchover Valve
- refinement package
- as of model year 09

Component Identification:

Location
The bypass air switchover valve located at the rear of the RH cylinder head.

Observe risk of mixing up with air pump switchover valve.

Task
The bypass air switchover valve actuates the blow-off valve to the turbocharger using a vacuum.

Design

Component Identification:

Function

Component Identification:

The bypass air switchover valve is directly actuated for a crossover of load to deceleration mode by the ME-SFI [ME] control unit (N3/10) by means of a ground signal.
The voltage supply takes place from "circuit 87 M2".

When energized, the armature disk (a) is tightened down by the solenoid (d) and the rubber seal (f) closes connection 1. The connection between connections 2 and 3 is released and the vacuum from the vacuum reservoir is dispersed in the blow-off valves.

In the deenergized state, the connection is restored between connections 1 and 3, which causes the blow-off valves to be ventilated again (via connection 3).